Subversion Repositories openrisc_2011-10-31

# cr16 testcase for excp uimm4

# mach(): cr16

        .include "testutils.inc"

        start

        .global excp

excp:

        pass # pass macro use the excp 8

## Test 1: bbpsw = 0, bpsw = 1, psw = 0

#

#       # bbsm = 0, bie = 0, bbcond = 0

#       movw $0, r4

#       lpr r4, cr8

#

#       # bsm = 1, bie = 1, bcond = 1, sm = 0, ie = 0, cond = 0

#       movw $0xc100, r4

#       lpr r4, cr0

#

#       # bbpc = 0

#       movw $0, r4

#       mvtc r4, bbpc

#

#       # bpc = 42

#       mvaddr_h_gr r4, 42

#       mvtc r4, bpc

#

#       # Copy excp2_handler to excp area of memory.

#       ld24 r0,#0x48 # address of excp 2 handler

#       ld24 r1,#excp2_handler

#       ld r2,@r1

#       st r2,@r0

#       # Set up return address.

#       ld24 r5,#excp2_ret1

#

#excp_insn1:

#       excp 2

#       fail

#

#excp2_ret1:

#       # test bbsm = 1, bbie = 1, bbcond = 1

#       mvfc r4, cr8

#       test_h_gr r4, 0xc1

#

#       # test bsm = 0, bie = 0, bcond = 0, sm = 0, ie = 0, cond = 0

#       mvfc r4, cr0

#       test_h_gr r4, 0

#

#       # test bbpc = 42

#       mvfc r4, bbpc

#       test_h_gr r4, 42

#

#       # test bpc = proper return address

#       mvfc r4, bpc

#       test_h_gr r4, excp_insn1 + 4

#

## Test 2: bbpsw = 1, bpsw = 0, psw = 1

#

#       # bbsm = 1, bie = 1, bbcond = 1

#       mvi_h_gr r4, 0xc1

#       mvtc r4, cr8

#

#       # bsm = 0, bie = 0, bcond = 0, sm = 1, ie = 1, cond = 1

#       mvi_h_gr r4, 0xc1

#       mvtc r4, cr0

#

#       # bbpc = 42

#       mvaddr_h_gr r4, 42

#       mvtc r4, bbpc

#

#       # bpc = 0

#       mvaddr_h_gr r4, 0

#       mvtc r4, bpc

#

#       # Set up return address.

#       ld24 r5,#excp2_ret2

#

#excp_insn2:

#       excp #2

#       fail

#

#excp2_ret2:

#       # test bbsm = 0, bbie = 0, bbcond = 0

#       mvfc r4, cr8

#       test_h_gr r4, 0

#

#       # test bsm = 1, bie = 1, bcond = 1, sm = 1, ie = 0, cond = 0

#       mvfc r4, cr0

#       test_h_gr r4, 0xc180

#

#       # test bbpc = 0

#       mvfc r4, bbpc

#       test_h_gr r4, 0

#

#       # test bpc = proper return address

#       mvfc r4, bpc

#       test_h_gr r4, excp_insn2 + 4

#

#       pass

#

#       .data

#

## Don't use rte as it will undo the effects of excp we're testing.

#

#       .p2align 2

#excp2_handler:

#       jmp r5

#       nop